Twenty minutes later, at the far end of the bowl, where it flattened and opened into the desert, three figures came into view, riding horses, less than a mile away. Lying flat at the crest of the dune with the binoculars Shan could see that it was two men in the garb of herders and between them, on a pony, a boy. Two large mastiffs ran on either side of the horses.

"Micah!" the American woman called out, and stood as though to run toward the distant figures.

"Warp- no!" her husband yelled, and pulled his wife back behind the dune.

In the same moment, over the dune on the opposite side of the wide, sandy bowl, a vehicle appeared. Not a red Brigade truck as Shan had expected but one of the sleek black utility vehicles of the boot squads. It inched to the top of the dune and stopped. A figure in a red nylon jacket climbed out of the driver's seat. Even without the binoculars Shan knew it was Ko Yonghong.

"The bastards," Marco spat at his side as the remaining doors opened. Two men in grey uniforms, carrying submachine guns, darted half a dozen paces in opposite directions to flank the vehicle, then each dropped to one knee, guns raised, as if prepared for combat. A third man, a barrel-chested figure who walked with a swagger, moved to Ko's side. Major Bao.

A gasp escaped from Kaju, standing halfway down the dune below Shan. The Tibetan stared in disbelief, glanced at Shan with an anguished expression, then looked back as one more figure emerged, a tall, thin, older man with an imperious bearing. Ko solicitiously handed him a pair of binoculars and the man studied the approaching riders, then patted Ko on the shoulder. Shan studied the stranger with his lenses. He had seen him before, in the photograph at Ko's office. "Rongqi," he heard Kaju gasp. It was the general himself, come to witness his ultimate triumph over the Tibetans.

"Dammit, No!" he heard Deacon's urgent whisper from behind, and he turned to see Lokesh and Gendun walking toward the end of the dune, as if to intercept the riders, waving them toward the outcropping as though it might hide them from the men in the truck. Shan felt a hand on his arm. Marco pointed silently toward the entrance to the oil camp, where another car had appeared, a Red Flag. It stopped and backed up, out of sight, then Prosecutor Xu appeared, alone, aiming a pair of binoculars toward the black truck.

Bao's attention was fixed on the riders. He raised his hand and seemed to snap out a command. The two knob soldiers sprang back to the truck.

"No!" Kaju moaned. He stumbled forward, his face twisted with pain. His eyes moved from the riders to the truck and then drifted back into the center of the bowl, where the single shrub grew between him and the truck. He stared at it curiously for a moment, then he began tearing at the neck of his shirt. He pulled a chain from his neck, a chain holding a large silver gau.

Raising the gau over his head, he leapt forward, bounding down the side of the dune, calling out, shouting Ko's name, then shouting for Major Bao, running hard toward the center of the bowl as if trying to meet the truck there. The men at the black truck stared at him for a moment, then jumped into the vehicle, the soldiers leaping on the sideboards, guns still at the ready, as Ko drove over the crest of the dune.

As he ran Kaju kept gesturing with an emphatic energy, as if he urgently needed them, dangling the gau as if they should recognize it. As if it were the Jade Basket. His pace slackened as he approached the bush, stopping for a moment thirty feet away from it, then starting again with a much slower movement, still waving the truck toward him.

Suddenly Shan understood. "No!" he gasped and began to rise. But a beefy hand settled over his shoulder. Marco pushed him down.

"You don't understand-" Shan protested. "He remembers the shrub. He saw the roots before! Deacon!" he called out desperately. The American would know.

Kaju had arrived at the bush and stopped, in the center of the bowl, still waving desperately as the truck sped forward. For a moment he turned, and looked back, as though seeking Shan, then he lowered himself into the lotus position, the gau now clutched at his chest, his head raised not toward the truck but toward the sky.

Deacon appeared at Shan's side. "Jesus!" he bellowed. "No! The cistern!"

The truck lurched to a stop beside the Tibetan and the soldiers jumped off. As the doors opened the truck began to sink and the soldiers shouted frantically at the men inside, one stumbling toward the door where the general had climbed in. Then the soldiers themselves began to drop as if being consumed by the sand itself.

It seemed to happen not in slow motion, but in fast motion, in a blurring sequence, as the desert opened up and swallowed the vehicle into the depths of the ancient cistern, then the sand of the bowl and the adjacent dunes swept inward in a great violent surge. A deep crater appeared for an instant where the huge cistern had been built centuries before, and Shan thought he saw arms and legs swimming in the sand and rock rubble. Then the desert filled the crater, the dunes shifting and sliding with a dreadful hissing and swirling as the tons of sand moved in.

Then, abruptly, there was stillness.

Deacon stood beside him. Shan had not had time to rise from his knees. At the road Xu stood staring, the binoculars at her side, then slowly she disappeared from view, walking backward, still facing the empty bowl. A moment later Shan heard the engine of the car as she drove away.

They walked silently, in shock, toward the shallow depression that marked where the cistern had been.

"We have to dig!" Abigail Deacon shouted repeatedly as she leapt down the dune and began scooping the sand with her hands.

"It's forty feet at least, Warp," her husband said quietly, as he and Shan reached her. "Thousands of tons of sand. Not a chance."

They stood, paralyzed, for a moment as the American woman, still kneeling, pounded the sand forlornly. The desert had claimed more dead. The karez had become a tomb after all. Ko who worshipped money. Rongqi who worshipped power. Bao who worshipped force. And one Tibetan who, however wasted in life, had been steadfast in his death.

A horse whinnied and they looked up to see the riders standing beside their horses now, with Lokesh and Gendun. They did not advance, but stood two hundred yards away, as if frightened.

"Micah!" the American woman called out, and jumped up to move toward the figures. Deacon started after her but stopped and looked back uncertainly as Shan called his name. Shamed by his weakness, Shan handed the American the gau he had taken from Malik, the gau from the grave at the lama field. The American's face went stiff, and his arm drooped when he reached for it, as if it had lost its strength. Shan pushed the gau into Deacon's hand and stepped away. He remembered the stab of pain in his heart when he had opened it the first time, the only time, the day after Malik had given it to him. For inside there had been no Jade Basket, no secret prayer. There had only been the shriveled remains of a small brown cricket.

The American woman kept stumbling in the soft sand, calling her son's name even as she fell. Deacon stood a moment staring at Shan, then at the short, slender figure with the two herders, his face growing dim, as if a veil were descending over it. Then he made a gasping sound as though he were back in the suffocating karez and stepped forward, calling his wife in a voice no one could hear at first, then louder, until as she stumbled to her knees again he caught up with her.

There was no need to explain, Shan saw, for Jacob Deacon understood. The American had been glimpsing another of the nightmares that had shadowed Shan since the nadam. Two mischevious boys had fooled their foster parents, their shadow clan guardians, because one had wanted to move to the lower pastures to be with the horses, while the other had been trying to reach the high Kunlun, the land of the lama field. Khitai had already played the same innocent game by trading places with Suwan at the Red Stone camp. Only for a few days, Khitai and Micah would have said, for everyone would meet at Stone Lake on the full moon. Malik had been certain Khitai died at the lama field but Malik had seen only a battered boy with dark hair already in his shroud, in possession of Khitai's belongings, at the place he expected Khitai to be.